THF-FER沸石的系列研究Ⅲ.晶体结构  

Studies on THF-FER Zeolite III. Crystal Structure

作　　者：王梯[1] 周伟正[1] 林德昌[1] 郭娟[1] 龙英才[1] 

机构地区：[1]复旦大学化学系分子催化和新材料实验室,上海200433

出　　处：《化学学报》2003年第10期1618-1622,共5页Acta Chimica Sinica

基　　金：国家自然科学基金 (No .2 0 0 730 1 0 );教育部博士点基金资助项目

摘　　要：用SEM ,HRTEM ,SAED和XRD拟合等方法研究了在四氢呋喃 (THF) Na2 O SiO2 Al2 O3 H2 O体系中水热合成的高硅Na THF FER沸石的晶体结构、孔道定向 ,以及不同因素对晶胞体积的影响 .通过与全硅FER沸石和K Na FER沸石对比实验证明 ,片状的THF FER沸石晶体与全硅FER沸石晶体骨架结构及晶体生长择优取向相同 。SEM, HRTEM, SAED and XRD simulation were used to investigate the crysta l structure, channel direction and cell parameters of a high-silica THF-FER ze ol ite, which was synthesized in the reactant system of tetrahydrofuran (THF)-Na 2O- SiO 2-Al 2O 3-H 2O. The results of comparable experiments with siliceous F ER zeolite and K-Na-FER zeolite confirm that a platelet-shaped crystallite of THF-FER pos sesses the same micro-structure and preferential orientation as that of silice ous FER zeolite crystals, belonging to Pnnm space group.

关 键 词：THF-FER沸石 晶体结构 四氢呋喃 空间点群 晶体形貌 孔道定向 

分 类 号：O76[理学—晶体学]